X Axis Jitter

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snfx
Posts: 2
Joined: Fri Oct 12, 2012 4:18 pm

X Axis Jitter

Post by snfx »

Hello together.
Since a few days the X Axis of my printer (Felix 1.0 + Upgrade to 2.0, 2.0 print)
has a Jitter on it (look at the picture), so I tried
yesterday everything I could find on the Forum to fix it:
-fasten Toothbelt
-loosen Toothbelt
-I repositioned and fastened the pulley
-to grease the runner
-Increase the current on the motor (potentiometer)
-reduce the current on the motor
But the result was more or less the same. Have I forgotten to try something or has anybody
any suggestions. Please Help me :?

Cheers snfx
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satoer
Posts: 436
Joined: Mon Oct 01, 2012 8:00 pm
Location: Netherlands

Post by satoer »

I needed to look twice at the picture, it looks like a hole in the red material :lol:

To narrow it down:
Try switching the X stepper motor connection with the Y stepper motor connection on the board and switch the X - Y opto sensor connectors (or just push someting between it when it's homing).
And print a simple cube or someting. Is the problem still on the X axis, or is it moved to the Y?
My Felix 1.5 printed designs on Thingiverse
E3D V6 Hot end upgrade for your Felix
Tweezer bracket for your Felix
Led bar upgrade for your Felix

snfx
Posts: 2
Joined: Fri Oct 12, 2012 4:18 pm

Post by snfx »

thanx a lot for your fast reply. So I swaped the x and y axis on the controller
as well as the optos. So It doesnt seem to be a problem of the main board, the
jitter is still on the former X axis. Could it be that the motor is broken?

cheers snfx

satoer
Posts: 436
Joined: Mon Oct 01, 2012 8:00 pm
Location: Netherlands

Post by satoer »

I think it's probably a broken stepper motor wire which resulted in skipped steps back and forth. The most likely location is at the base of the stepper motor.

The good thing, these stepper motors are pretty cheap :)
My Felix 1.5 printed designs on Thingiverse
E3D V6 Hot end upgrade for your Felix
Tweezer bracket for your Felix
Led bar upgrade for your Felix

satoer
Posts: 436
Joined: Mon Oct 01, 2012 8:00 pm
Location: Netherlands

Post by satoer »

According to this motor diagram (left):
Image
there's a coil between black and green, and blue and red.
put a multimeter on resistance (ohm) and measure the resistance on the connector between black and green while twisting and bending the motor wire. Repeat this with the blue and red wire. If the resistance jumps to infinity then for sure a wire is broken.

You can also try this for a dirty solution:
Image
My Felix 1.5 printed designs on Thingiverse
E3D V6 Hot end upgrade for your Felix
Tweezer bracket for your Felix
Led bar upgrade for your Felix

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